（ ）a language requires times ang effort A Learn B Learning C To learn D Beijing learned填空

a universal language还是an universal language? a second language keep a language journal a cecond language 和 another language 区别a cecond language 和 another language 区别 Learning a foreign language is useful. （改为同义句） ()()very useful to me () a foreign language learn a foreign language 等于study a foreign language吗 invent a language还是make a language 制造一种语言 language language Language (Language language Please select a language first. English is a [ ](use) language. lessons at a language school. A good memory is a great help in （ ）a language括号里应该填哪个?求理由A.learn B.learning C.learns D.being learning还有,learn a language和learning a language有什么区别?求讲解 语言学为什么研究language而不是languages或者a language have language in common 还是have a language in common